I'm trying to figure out how I can create a Logger to log rule activations for my Template File code. I followed the examples to successfully create a Logger for DRL and Decision Table examples. Apparently, to create a Logger, the KnowledgeRuntimeLoggerFactory methods take a KnowledgeRuntimeEventManager type, which *StatefulKnowledgeSession*implements. But, for the Template File examples, the *StatefulSession* from the "unstable" drools-core *does not* implement this interface. SEE the code examples below - how do I create a Logger for my Template File code? //#### DRL FILE & EXCEL FILE EXAMPLE FOR CREATING A SESSION AND FIRING THE RULES: //#### CREATING A RULES LOGGER WORKS // populate working memory KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(...[DRL or DTABLE resources]...); KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(); knowledgeBase.addKnowledgePackages(kbuilder.getKnowledgePackages()); // create session StatefulKnowledgeSession rulesSession = knowledgeBase.newStatefulKnowledgeSession(); KnowledgeRuntimeLogger rulesLogger = KnowledgeRuntimeLoggerFactory.newConsoleLogger(rulesSession); //<<*CREATE LOGGER!* FactHandle factHandle = rulesSession.insert(myFact); // fire the rules rulesSession.fireAllRules(); //#### TEMPLATE FILE EXAMPLE FOR CREATING A SESSION AND FIRING THE RULES: //#### CREATING A RULES LOGGER DOES NOT COMPILE! // populate working memory ExternalSpreadsheetCompiler converter = new ExternalSpreadsheetCompiler(); InputStream spreadsheetStream = ... InputStream templateFileStream = ... String drl = converter.compile(spreadsheetStream, templateFileStream, 3, 3); PackageBuilder builder = new PackageBuilder(); builder.addPackageFromDrl(new StringReader(drl)); RuleBase templateRuleBase = RuleBaseFactory.newRuleBase(); templateRuleBase.addPackage(builder.getPackage()); // create session StatefulSession rulesSession = templateRuleBase.newStatefulSession(); KnowledgeRuntimeLogger rulesLogger = KnowledgeRuntimeLoggerFactory.newConsoleLogger(rulesSession);//<<*DOESN'T COMPILE!* FactHandle factHandle = rulesSession.insert(myFact); // fire the rules rulesSession.fireAllRules(); ------------------------------ View this message in context: Drools 5 - how create Logger for Template File based rules?<http://www.nabble.com/Drools-5---how-create-Logger-for-Template... Sent from the drools - user mailing list archive<http://www.nabble.com/drools---user-f11823.html>at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Wolfgang, is this correct? Thx <pre> // populate working memory ExternalSpreadsheetCompiler converter = new ExternalSpreadsheetCompiler(); InputStream spreadsheetStream = ... InputStream templateFileStream = ... String drl = converter.compile(spreadsheetStream, templateFileStream, 3, 3); Resource drlResource = ResourceFactory.newReaderResource(new StringReader(drl)); KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(drlResource, ResourceType.DRL); KnowledgeBuilderErrors errors = kbuilder.getErrors(); if (errors.size() > 0) { for (KnowledgeBuilderError error: errors) { System.err.println(error); } throw new IllegalStateException("Could not parse knowledge from template example"); } KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(); knowledgeBase.addKnowledgePackages(kbuilder.getKnowledgePackages()); // create session StatefulKnowledgeSession rulesSession = knowledgeBase.newStatefulKnowledgeSession(); KnowledgeRuntimeLogger rulesLogger = KnowledgeRuntimeLoggerFactory.newConsoleLogger(rulesSession); //&lt;&lt;CREATE LOGGER! FactHandle factHandle = rulesSession.insert(myFact); // fire the rules rulesSession.fireAllRules(); </pre> Wolfgang Laun-2 wrote: > > You can use a KnowledgeBuilder with template-derived DRL-resources and set > up your KnowledgeBase from its results the same way you do it with plain > .drl-files. Obtain a StatefulKnaowledgeSession and pass this to > the KnowledgeRuntimeLoggerFactory, as in your first code sample. > -W > > > On 6/30/09, chris@twc <christopher.mcfarland(a)twc.state.tx.us&gt; wrote: >> >> I'm trying to figure out how I can create a Logger to log rule >> activations >> for my Template File code. I followed the examples to successfully create >> a >> Logger for DRL and Decision Table examples. Apparently, to create a >> Logger, >> the KnowledgeRuntimeLoggerFactory methods take a >> KnowledgeRuntimeEventManager type, which >> *StatefulKnowledgeSession*implements. But, for the Template File >> examples, the >> *StatefulSession* from the "unstable" drools-core *does not* implement >> this interface. SEE the code examples below - how do I create a Logger >> for >> my Template File code? >> >> //#### DRL FILE & EXCEL FILE EXAMPLE FOR CREATING A SESSION AND FIRING >> THE >> RULES: >> //#### CREATING A RULES LOGGER WORKS >> >> // populate working memory >> KnowledgeBuilder kbuilder = >> KnowledgeBuilderFactory.newKnowledgeBuilder(); >> kbuilder.add(...[DRL or DTABLE resources]...); >> KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(); >> knowledgeBase.addKnowledgePackages(kbuilder.getKnowledgePackages()); >> // create session >> StatefulKnowledgeSession rulesSession = >> knowledgeBase.newStatefulKnowledgeSession(); >> KnowledgeRuntimeLogger rulesLogger = >> KnowledgeRuntimeLoggerFactory.newConsoleLogger(rulesSession); //<<*CREATE >> LOGGER!* >> FactHandle factHandle = rulesSession.insert(myFact); >> // fire the rules >> rulesSession.fireAllRules(); >> >> //#### TEMPLATE FILE EXAMPLE FOR CREATING A SESSION AND FIRING THE RULES: >> //#### CREATING A RULES LOGGER DOES NOT COMPILE! >> >> // populate working memory >> ExternalSpreadsheetCompiler converter = new >> ExternalSpreadsheetCompiler(); >> InputStream spreadsheetStream = ... >> InputStream templateFileStream = ... >> String drl = converter.compile(spreadsheetStream, templateFileStream, 3, >> 3); >> PackageBuilder builder = new PackageBuilder(); >> builder.addPackageFromDrl(new StringReader(drl)); >> RuleBase templateRuleBase = RuleBaseFactory.newRuleBase(); >> templateRuleBase.addPackage(builder.getPackage()); >> // create session >> StatefulSession rulesSession = templateRuleBase.newStatefulSession(); >> KnowledgeRuntimeLogger rulesLogger = >> KnowledgeRuntimeLoggerFactory.newConsoleLogger(rulesSession);//<<*DOESN'T >> COMPILE!* >> FactHandle factHandle = rulesSession.insert(myFact); >> // fire the rules >> rulesSession.fireAllRules(); >> >> >> ------------------------------ >> View this message in context: Drools 5 - how create Logger for Template >> File based >> rules?< http://www.nabble.com/Drools-5---how-create-Logger-for-Template-File-base... > >> Sent from the drools - user mailing list >> archive<http://www.nabble.com/drools---user-f11823.html>at Nabble.com. >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/Drools-5---how-create-Logger-for-Template-File-base... Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users